New keys·Pinkies hold the edges — A and semicolon.
WPM0
ACC100%
DONE0%
aaa ;;; a;a ;a; a;a ;a; a;
Left Pinky
Lesson 4 of 15 in the free touch-typing course — it practises A · ;, working outward from the home row. By this point you're typing with 8 keys, accuracy before speed.